Coding a key when there is more than one correct answer to a question:
If there is more than one correct answer to a particular question, multiple keys must be coded. For Example, if question #1 is to be scored as correct if either B or C is coded, two keys are needed. The first key would have "B" coded for question 1 along with all the correct answers for all the other questions. The second key would only have "C" coded for question #1 (all other questions are left blank).
No question on a key or student answer sheet may have more than one response coded for the same question. A multiple mark will be replaced with a blank in the output record and the question scored as incorrect.